Proceedings of an International Symposium on the ... jointly organized by the IAEA and the FAO of the United Nations and held in Colombo, 11 - 15 December, 1978
(1979)
Proceedings of the Symposium jointly organized by the IAEA and the FAO of the United Nations in co-operation with the International Soil Science Society and held in Vienna, 15 - 19 July 1968
(1968)
A Symposium on World food prod. by means of sust. agr. : the role of crop prot., held in collaboration wich the Centre for Res. on Sust. Agr. and Rural Dev. at the Fisherman's Cove Hotel, Madras, India 30 Nov. -2 Dec. 1992
(1993)
Papers from a Symposium held in Scopje on 31st October 1997 on the Occasion of 30th Anniversary of foundation of the Makedonian academy of sciences and arts
(1998)
